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The "Blank Space" singer thanked boyfriend Calvin Harris — aka Adam Wiles — in one of her speeches, saying, "For the first time I had the most amazing person to come home to when the spotlight went out and when the crowds were all gone. So I want to thank my boyfriend Adam for that."'

Photo credit: Getty Images

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Selena Gomez wowed in an orange jumpsuit on the red carpet before ex-boyfriend Justin Bieber took the stage — and gave him a standing ovation afterwards!

Photo credit: Getty Images

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The "Sorry" crooner wowed fans — and even ventured into the crowd!

Photo credit: Splash News

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Meghan Trainor also performed, and debuted her new hit, "No."

Photo credit: Getty Images

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Zayn Malik also made his debut as a solo artist, performing his new hit, "Like I Would."

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The "Blank Space" singer thanked boyfriend Calvin Harris — aka Adam Wiles — in one of her speeches, saying, "For the first time I had the most amazing person to come home to when the spotlight went out and when the crowds were all gone. So I want to thank my boyfriend Adam for that."'

Photo credit: Getty Images

iheartradio-awards-2016-recap-performances-speeches-06

Selena Gomez wowed in an orange jumpsuit on the red carpet before ex-boyfriend Justin Bieber took the stage — and gave him a standing ovation afterwards!

Photo credit: Getty Images

iheartradio-awards-2016-recap-performances-speeches-08

The "Sorry" crooner wowed fans — and even ventured into the crowd!

Photo credit: Splash News

iheartradio-awards-2016-recap-performances-speeches-09

Meghan Trainor also performed, and debuted her new hit, "No."

Photo credit: Getty Images

iheartradio-awards-2016-recap-performances-speeches-10

Zayn Malik also made his debut as a solo artist, performing his new hit, "Like I Would."